MK3 BLACK CONCRETE RING, ASYMMETRIC | Cement RingThe MK3 Black Concrete Ring, Asymmetric is a bold, architectural statement you can wear every day. Inspired by Berlins iconic MK3 building, this minimalist cement ring blends urban sophistication with everyday comfort, so you can carry a piece of bold design on your finger. Why this ring stands out Asymmetric, multifaceted design: Each side of the ring is distinctly different, letting you switch up your look simply by rotating the ring to reveal a new